Splitter plate bushing of injection molding machine
By installing a heat insulation sleeve and protective mechanism on the manifold bushing of the injection molding machine, the problems of bushing oxidation and mechanical damage under high temperature and high pressure are solved, resulting in a longer service life and higher product quality.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-04-22
- Publication Date
- 2026-03-27
AI Technical Summary
Traditional manifold bushings are prone to oxidation, deformation, and wear under high temperature, high pressure, and mechanical conditions, affecting their service life and the quality of injection molded products.
A manifold bushing for an injection molding machine was designed, which employs a heat insulation sleeve and a protective mechanism. The heat insulation sleeve is fixed by countersunk bolts, and the protective mechanism includes a mounting ring, a protective cover, an elastic structure, and a limiting block to prevent high-temperature oxidation and mechanical damage.
Effective heat insulation and protection, extending bushing life, preventing oxidation and impact damage, and improving service life and product quality.
Smart Images

Figure CN224044443U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to bush technology field especially relates to a injection molding machine distribution plate bush. BACKGROUND
[0002] In the technical field of injection molding machines, the distribution plate bush, as a key component in the mold system of an injection molding machine, plays an important role in uniformly distributing molten plastic into the mold cavity. During the injection molding process, plastic is injected into the mold under high temperature and high pressure, which puts high demands on the material properties and structural design of the distribution plate bush. Traditional design of the distribution plate bush often overlooks the impact of high-temperature environment on the bush material, leading to oxidation, deformation, and even damage of the bush under long-term high-temperature operation. This not only shortens the service life of the bush but also affects the quality and production efficiency of injection molded products.
[0003] In addition, during operation, the distribution plate bush is often exposed to a complex mechanical environment and is prone to being bumped or impacted by external objects, which can accelerate the wear and tear of the bush and reduce its durability. In view of the above problems, the present application provides an injection molding machine distribution plate bush. SUMMARY
[0004] The utility model discloses an injection molding machine distribution plate bush to solve the shortcomings in the prior art.
[0005] To achieve the above-mentioned purpose, the utility model adopts the following technical scheme:
[0006] An injection molding machine distribution plate bush includes a bush, a heat shield sleeve is fitted on the sidewall of the bush, a connecting groove is provided on the sidewall of the heat shield sleeve, a countersunk bolt is provided inside the connecting groove, the countersunk bolt is screwed onto the sidewall of the bush, the two ends of the bush are a large end and a small end, and a protection mechanism is provided at the small end of the bush.
[0007] As a further improvement of the utility model, the protection mechanism includes a mounting ring fixedly fitted on the bush, a protective cover is provided on one side of the mounting ring, an active groove is provided on the sidewall of the mounting ring, and an elastic structure connected with the protective cover is provided inside the active groove.
[0008] As a further improvement of the utility model, the mounting ring is threadedly fitted on the sidewall of the bush.
[0009] As a further improvement of the utility model, the elastic structure includes an active rod provided inside the active groove, a stop block is fixed to one end of the active rod, the other end of the active rod penetrates the inner wall of the active groove and is fixedly connected to the sidewall of the protective cover, a spring is fitted on the active rod, one end of the spring abuts against the stop block, and the other end of the spring abuts against the inner wall of the active groove.
[0010] As a further improvement of the utility model, the side wall of the protective cover is fixed with a limiting block, and the side wall of the mounting ring is provided with a limiting hole matched with the limiting block.
[0011] As a further improvement of the utility model, the big end of the bushing is provided with a mounting groove.
[0012] The utility model discloses beneficial effects:
[0013] By setting the heat insulation sleeve, the heat insulation effect of the bushing can be effectively realized, the oxidation or deformation under high temperature is avoided, and the service life of the bushing is improved.
[0014] By setting the protection mechanism, the protective cover has impact resistance, and the bushing can be effectively prevented from being damaged by knocking during operation. DRAWINGS
[0015] Figure 1 A structure schematic view of one perspective of the bushing of the injection molding machine distribution plate is provided for the utility model;
[0016] Figure 2 A structure schematic view of another perspective of the bushing of the injection molding machine distribution plate is provided for the utility model;
[0017] Figure 3 A structure schematic view of the protective cover, limiting block, movable rod, spring and stop block of the bushing of the injection molding machine distribution plate is provided for the utility model;
[0018] Figure 4 A structure schematic view of the mounting ring and movable groove of the bushing of the injection molding machine distribution plate is provided for the utility model.
[0019] In the drawing: 1 bushing, 2 heat insulation sleeve, 3 connecting groove, 4 countersunk bolt, 5 mounting ring, 6 protective cover, 7 limiting hole, 8 mounting groove, 9 limiting block, 10 movable rod, 11 spring, 12 stop block, 13 movable groove. DETAILED DESCRIPTION
[0020] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only a part of the embodiments of the utility model, not all the embodiments.
[0021] Referring to Figures 1-4 A bushing of an injection molding machine distribution plate, comprising a bushing 1, a heat insulation sleeve 2 is sleeved on the side wall of the bushing 1, a connecting groove 3 is arranged on the side wall of the heat insulation sleeve 2, a countersunk bolt 4 is arranged in the connecting groove 3, the countersunk bolt 4 is screwed on the side wall of the bushing 1, the two ends of the bushing 1 are a big end and a small end respectively, the small end of the bushing 1 is provided with a protection mechanism, and the big end of the bushing 1 is provided with a mounting groove 8.
[0022] The utility model discloses, the protection mechanism includes the installation ring 5 of fixed sleeve joint on the bush 1, and the installation ring 5 is screwed on the lateral wall of bush 1, and one side of installation ring 5 is equipped with the protective cover 6, and the lateral wall of installation ring 5 is equipped with the movable slot 13, and the inside of movable slot 13 is equipped with the elastic structure that is connected with protective cover 6.
[0023] The elastic structure includes movable rod 10 that sets up in movable slot 13 inside, and one end of movable rod 10 is fixed with the stopper 12, and the other end of movable rod 10 penetrates the inner wall of movable slot 13 and is fixedly connected on the lateral wall of protective cover 6, and spring 11 is set up on movable rod 10, and one end of spring 11 is opposite with stopper 12, and the other end of spring 11 is opposite with the inner wall of movable slot 13, and further, the lateral wall of protective cover 6 is fixed with the limit block 9, and the lateral wall of installation ring 5 is equipped with the limit hole 7 that cooperates with limit block 9.
[0024] The utility model discloses when using, bush 1 is installed to the shunt plate, then utilizes the screw to pass through the installation slot 8, can install bush 1 on the shunt plate, when needing to protect bush 1, first pull protective cover 6, make protective cover 6 move to the outside, movable rod 10 moves in the inside of movable slot 13 and compresses spring 11, then rotates protective cover 6, make protective cover 6 rotate in the little head end of bush 1, loosen protective cover 6, under the elastic force of spring 11, protective cover 6 moves towards the little head end of bush 1, simultaneously, limit block 9 inserts the inside of limit hole 7, can make protective cover 6 cover and set in the little head end of bush 1, protect bush 1.
[0025] The above, only for the preferred specific implementation mode of the utility model, but the protection scope of the utility model does not limit to this, any skilled in the art person in the utility model disclosed technical range, according to the utility model technical scheme and its utility model concept, equivalent replacement or change, all should cover in the protection scope of the utility model.
Claims
1. An injection molding machine distributor bushing comprising a bushing (1), characterized in that, The side wall of the bushing (1) is sleeved with a heat insulation sleeve (2), the side wall of the heat insulation sleeve (2) is provided with a connecting groove (3), the inside of the connecting groove (3) is provided with a countersunk bolt (4), the countersunk bolt (4) is screwed on the side wall of the bushing (1), the two ends of the bushing (1) are a large end and a small end respectively, and the small end of the bushing (1) is provided with a protection mechanism.
2. A bushing for a diverter plate of an injection molding machine as defined in claim 1, wherein, The protection mechanism comprises a mounting ring (5) fixedly sleeved on the bushing (1), one side of the mounting ring (5) is provided with a protective cover (6), the side wall of the mounting ring (5) is provided with a movable groove (13), and the inside of the movable groove (13) is provided with an elastic structure connected with the protective cover (6).
3. A bushing for a diverter plate of an injection molding machine as defined in claim 2, wherein, The mounting ring (5) is threadedly sleeved on the side wall of the bushing (1).
4. A bushing for a diverter plate of an injection molding machine as defined in claim 2, wherein, The elastic structure comprises a movable rod (10) arranged in the movable groove (13), one end of the movable rod (10) is fixedly provided with a stop block (12), the other end of the movable rod (10) penetrates through the inner wall of the movable groove (13) and is fixedly connected to the side wall of the protective cover (6), a spring (11) is sleeved on the movable rod (10), one end of the spring (11) abuts against the stop block (12), and the other end of the spring (11) abuts against the inner wall of the movable groove (13).
5. A bushing for a diverter plate of an injection molding machine as defined in claim 2, wherein, The side wall of the protective cover (6) is fixedly provided with a limiting block (9), and the side wall of the mounting ring (5) is provided with a limiting hole (7) matched with the limiting block (9).
6. A bushing for a diverter plate of an injection molding machine as defined in claim 1, wherein, The large end of the bushing (1) is provided with a mounting groove (8).